A cutting machine for double-end terminal wire harnesses

Abstract

The utility model discloses a kind of cutting machines of double-end terminal wire harness, belong to wire harness production field, including by clamping assembly, traction assembly, cutting assembly and base wire harness cutting machine.It is compared with prior art that the utility model has the advantages that the device is installed on the fixed upper roll side of clamping assembly Adjusting motor that can control the reverse rotation of fixed upper roll, when appearing inertia lengthening, it can be through reversing adjusting motor, to make the wire harness that is pulled out straight, to ensure the accuracy when cutting, and use linear motor as traction, can guarantee the speed of traction, wherein the end is clamped using electric wire pulling clamp, can ensure that wire segment can be quickly dropped to the base below after completing cutting.

Description

Technical Field

[0001] This utility model relates to the field of wire harness production, specifically to a cutting machine for double-ended terminal wire harnesses. Background Technology

[0002] The existing processing flow for double-ended terminal wire harnesses includes material feeding, tube cutting, wire cutting, rain plug insertion, terminal crimping, wire twisting, and assembly. Among these, wire cutting is a key operation for controlling the length of the wire harness. It plays a crucial role in the entire production process and ensures that the wire harness length is controlled within a reasonable range throughout the process. This avoids waste due to excessive wire length or assembly failure due to insufficient length. Therefore, the precision of the wire harness cutting machine is of paramount importance.

[0003] The existing double-head terminal wire harness cutting machine mainly consists of a clamping assembly, a traction assembly, a cutting assembly, and a base. The clamping assembly typically uses two rollers to hold the wire end, and two clamping plates to hold it in place. The traction is accomplished by a moving shaft, which is usually driven by a threaded rod. Finally, the cutting blade of the cutting assembly cuts the wire at a fixed point.

[0004] While this method can cut the wire harness, the cut wire harness segments inevitably pull out more of the tail end due to inertia during the traction process. Also, during the cutting process, the clamping rollers of the clamping assembly may rotate due to the squeezing of the cutting blade, resulting in the wire segments being cut too much due to deformation. Utility Model Content

[0005] The technical problem this invention aims to solve is that existing double-ended terminal wire harness cutting machines cannot guarantee that the wire harness will not extend excessively between the rollers during cutting. Furthermore, during cutting, the downward pressure of the cutting blade increases the total spacing between the wire segments, resulting in deviations in the length of the wire segments and causing a certain amount of waste.

[0006] To solve the above technical problems, the technical solution provided by this utility model is: a double-ended terminal wire harness cutting machine, comprising a wire harness cutting machine composed of a clamping assembly, a traction assembly, a cutting assembly and a base, wherein the clamping assembly, the traction assembly and the cutting assembly are all fixedly connected to the base by bolt structure;

[0007] The clamping assembly includes a fixed upper roller and a movable lower roller for clamping the wire harness, roller fixing frames located on both sides of the fixed upper roller and the movable lower roller, an adjusting motor for driving the fixed upper roller to rotate, movable blocks sleeved on both sides of the movable lower roller shaft, and a movable roller telescopic rod for supporting the up and down movement of the movable blocks. The roller fixing frame has a height groove inside for placing the movable roller telescopic rod and the movable blocks. There are several arc-shaped wire clamping grooves above the fixed upper roller and the movable lower roller, and the adjusting motor has the ability to pull in the opposite direction.

[0008] The traction assembly includes a right-angle fixing plate welded above the roller fixing frame, a wire harness height limiting block welded to the flat end of the right-angle fixing plate, several linear motors located behind the wire harness height limiting block, an electric wire clamp located below the linear motors, a movable wire harness limiting block located below the wire harness height limiting block, and several limiting block telescopic rods located below the wire harness height limiting block. The wire harness height limiting block and the movable wire harness limiting block are both provided with wire clamping grooves equal in number to the wire harness. The height of the wire clamping groove below the wire harness height limiting block is the same as the height of the wire clamping groove on the bottom surface of the fixed upper roller. The effective engagement of the electric wire clamp is the same as that of the wire clamping groove.

[0009] The cutting assembly includes a T-shaped cutting blade passing through the top surface of the movable wire harness limiting block and the bottom surface of the wire harness equal-height limiting block, as well as several cutting blade telescopic rods located on the bottom surface of the T-shaped cutting blade. The interior of the movable wire harness limiting block is provided with a cutting blade groove for placing the T-shaped cutting blade and the cutting blade telescopic rods.

[0010] As an improvement, the number of rotations of the regulating motor and the moving distance of the linear motor are both remotely controlled by a computer.

[0011] As an improvement, the adjusting motor is connected to the fixed upper roller via a connecting key, and the adjusting motor is connected to the outer wall of the roller fixing frame via a bolt structure.

[0012] As an improvement, the electric wire clamp has an anti-slip pad inside.

[0013] As an improvement, the side of the wire harness height limiting block is provided with a shock-absorbing pad to prevent the linear motor from vibrating.

[0014] As an improvement, the track of the linear motor is connected to the right-angle fixing plate by a bolt structure.

[0015] The advantages of this utility model compared with the prior art are as follows:

[0016] 1. This device has an adjustable motor installed on the side of the fixed upper roller of the clamping assembly, which can control the reverse rotation of the fixed upper roller. When inertial elongation occurs, the pulled wire bundle can be straightened by reversing the adjustable motor, thereby ensuring the accuracy of cutting. The use of a linear motor as the traction object can ensure the speed of traction. The wire end is held by an electric wire clamp, which can ensure that the wire segment can quickly fall to the base below after the cutting is completed.

[0017] 2. Weld a wire harness height limiting block at the same height as the upper roller to the right-angle fixing plate of the traction assembly, and make the wire clamping grooves of the two the same height. This ensures that the wire harness will not deform when it reaches the lower part of the wire harness height limiting block. Install a corresponding movable wire harness limiting block below the wire harness height limiting block to clamp the wire harness, and install a T-shaped cutting blade in the cavity of the movable wire harness limiting block. This ensures that the wire harness will not be overcut due to deformation when cutting. Attached Figure Description

[0018] Figure 1 This is a front view of the overall structure of a cutting machine for double-ended terminal wire harnesses according to this utility model.

[0019] Figure 2 This is a rear view of the overall structure of a cutting machine for double-ended terminal wire harnesses according to this utility model.

[0020] Figure 3 This is a cross-sectional view of the overall structure of a cutting machine for double-ended terminal wire harnesses according to this utility model.

[0021] Figure 4 This is an exploded view of the overall structure of a cutting machine for double-ended terminal wire harnesses according to this utility model.

[0022] As shown in the figure: 1. Wire harness cutting machine; 11. Clamping assembly; 111. Fixed upper roller; 112. Movable lower roller; 113. Roller fixing frame; 1131. Height groove; 114. Adjusting motor; 115. Movable block; 116. Movable roller telescopic rod; 12. Traction assembly; 121. Right angle fixing plate; 122. Wire harness height limit block; 123. Linear motor; 124. Electric wire clamp; 125. Movable wire harness limit block; 126. Limit block telescopic rod; 13. Cutting assembly; 131. T-shaped cutting blade; 132. Cutting blade telescopic rod; 133. Cutting blade groove; 14. Base. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings.

[0024] As per the instruction manual Figure 1 , 2 As shown in Figures 3 and 4, the existing double-ended terminal wire harness cutting machine 1 consists of a clamping assembly 11, a traction assembly 12, a cutting assembly 13, and a base 14. The clamping assembly 11, the traction assembly 12, and the cutting assembly 13 are all fixedly connected to the base 14 by bolts.

[0025] To accommodate wire harnesses of different diameters, the clamping assembly 11 includes a fixed upper roller 111 and a movable lower roller 112 for clamping the wire harness, roller fixing frames 113 located on both sides of the fixed upper roller 111 and the movable lower roller 112, an adjusting motor 114 for driving the fixed upper roller 111 to rotate, movable blocks 115 sleeved on both sides of the shaft of the movable lower roller 112, and a movable roller telescopic rod 116 for supporting the up-and-down movement of the movable blocks 115. The movable roller telescopic rod 116 is fixed while the direction of the movable blocks 115 is restricted. The roller fixing frame 113 has a height groove 1131 inside for placing the movable roller telescopic rod 116 and the movable block 115. In order to ensure the unidirectional movement of multiple wire harnesses between the two rollers, there are several arc-shaped wire-holding grooves above the fixed upper roller 111 and the movable lower roller 112. The shaft of the fixed upper roller 111 passes through both sides of the roller fixing frame 113 and is connected to the output shaft of the adjusting motor 114 using a connecting key. The adjusting motor 114 is connected to the outer wall of the roller fixing frame 113 by bolts.

[0026] To ensure rapid traction, the traction assembly 12 includes a right-angle fixing plate 121 welded above the roller fixing frame 113, a wire harness height limiting block 122 welded to the flat end of the right-angle fixing plate 121, several linear motors 123 located behind the wire harness height limiting block 122, an electric wire clamp 124 located below the linear motors 123, a movable wire harness limiting block 125 located below the wire harness height limiting block 122, and several limiting block telescopic rods 126 located below the wire harness height limiting block 122. To prevent the linear motors 123 from impacting the side of the wire harness height limiting block 122, the side of the wire harness height limiting block 122 is provided with shock-absorbing pads to prevent the linear motors 123 from impacting. Similarly, to ensure that the wire harness does not slip out of the electric wire clamp 124 during traction, the inside of the electric wire clamp 124 is provided with anti-slip pads.

[0027] To ensure consistency in the number of wire harnesses pulled, the lower part of the wire harness equal height limiting block 122 and the upper part of the movable wire harness limiting block 125 are both provided with wire-locking grooves equal to the number of wire harnesses. The height of the wire-locking groove below the wire harness equal height limiting block 122 is the same as the height of the wire-locking groove on the bottom surface of the fixed upper roller 111. This ensures that the wire harness will not be bent during pulling, thus affecting subsequent operations. Similarly, the effective engagement of the electric wire clamp 124 is the same as the wire-locking groove, so that each wire has its own responsible pulling component. This ensures that the wire harness will not become disordered, and also ensures that the cut wire segments will not get stuck in the electric wire clamp 124.

[0028] To prevent the wire harness from being stretched during line segment cutting, the cutting assembly 13 includes a T-shaped cutting blade 131 passing through the top surface of the movable wire harness limiting block 125 and the bottom surface of the wire harness height limiting block 122, as well as several cutting blade extension rods 132 located on the bottom surface of the T-shaped cutting blade 131. The movable wire harness limiting block 125 has a cutting blade groove 133 inside for placing the T-shaped cutting blade 131 and the cutting blade extension rods 132. By placing the T-shaped cutting blade 131 in the cutting blade groove 133 of the wire harness height limiting block 122, and allowing the T-shaped cutting blade 131 to pass through the wire harness height limiting block 122, the T-shaped cutting blade 131 can be cut without accidental stretching after the wire harness is clamped, thereby ensuring the accuracy of the cut.

[0029] In this device, the upper and lower ends of the cutting blade telescopic rod 132, the movable roller telescopic rod 116, and the limiting block telescopic rod 126 are all connected to each other with screws.

[0030] In a specific implementation of this invention, the first end of the wire harness is sequentially inserted into the wire-clamping grooves of the fixed upper roller 111 and the movable lower roller 112. Then, the telescopic rod 116 of the movable roller is adjusted, causing the movable lower roller 112 to rise, thereby clamping the wire harness between the fixed upper roller 111 and the movable lower roller 112. Afterward, the wire end is pulled through the wire-clamping groove of the wire harness leveling limit block 122, and then the telescopic rod 126 of the limit block is manipulated to rise, tightening the wire harness while simultaneously squeezing it against the movable wire harness limit block 125. Finally, the telescopic rod 132 of the cutting blade is activated, causing... The T-shaped cutting blade 131 cuts off each thread end, thus aligning the thread ends. (The cutting blade extension rod 132 is activated by a momentary start and automatically resets after operation. After the cutting blade extension rod 132 resets, the limit block extension rod 126 slightly lowers to ensure that the linear motor 123 does not become unable to pull during traction. Similarly, when the adjusting motor 114 is not in use, the main shaft can rotate freely without self-locking.) Then, the computer starts the adjusting motor 114 to perform a fixed-distance forward rotation, allowing the thread... The wire harness moves forward a short distance in the cable slot until it reaches the clamping distance of the electric cable clamp 124 (the short movement of the wire harness will not result in the harness being completely removed, thus ensuring the accuracy of the traction). Then, the computer starts the linear motor 123 to reset, and then starts the electric cable clamp 124 to clamp the wire end. After clamping, each linear motor 123 quickly moves to the set position. Upon reaching the set position, a completion signal is sent to the linear motor 123, causing the computer to start the adjusting motor 114 to reverse, tightening the wire harness. Then, it starts again, and the limit block... The telescopic rod 126 rises, clamping the wire harness. After clamping, the adjusting motor 114 is de-energized, and the cutting blade telescopic rod 132 rises, cutting the wire harness. Afterward, it resets, completing the first cut of the single-end wire harness. After the reciprocating calibration operation, the electric wire clamp 124 releases the cut wire segment when returning, and the other end of the wire segment is pushed out by the waiting end due to the forward rotation of the adjusting motor 114, thus completing the cut wire segment on the base 14. For convenient collection, a collection box can be placed on the base 14.

[0031] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A wire harness cutting machine for double-ended terminals, comprising a wire harness cutting machine (1) consisting of a clamping assembly (11), a traction assembly (12), a cutting assembly (13), and a base (14), wherein the clamping assembly (11), the traction assembly (12), and the cutting assembly (13) are all fixedly connected to the base (14) by bolts, characterized in that: The clamping assembly (11) includes a clamping wire harness fixed upper roller (111) and a movable lower roller (112), a roller fixing frame (113) located on both sides of the fixed upper roller (111) and the movable lower roller (112), an adjusting motor (114) that drives the fixed upper roller (111) to rotate, movable blocks (115) sleeved on both sides of the shaft of the movable lower roller (112), and a movable roller telescopic rod (116) that supports the movable blocks (115) to move up and down. The roller fixing frame (113) is provided with a height groove (1131) for placing the movable roller telescopic rod (116) and the movable blocks (115) inside. There are several arc-shaped wire clamping grooves above the fixed upper roller (111) and the movable lower roller (112), and the adjusting motor (114) has the ability to pull in the opposite direction. The traction assembly (12) includes a right-angle fixing plate (121) welded above the roller fixing frame (113), a wire harness height limiting block (122) welded to the flat end of the right-angle fixing plate (121), several linear motors (123) located behind the wire harness height limiting block (122), an electric wire clamp (124) located below the linear motors (123), and a movable wire harness limiting block (125) located below the wire harness height limiting block (122). 25) and several limit block telescopic rods (126) located below the wire harness equal height limit block (122). The wire harness equal height limit block (122) and the movable wire harness limit block (125) are provided with wire clamping grooves equal to the number of wire harnesses. The height of the wire clamping groove below the wire harness equal height limit block (122) is equal to the height of the bottom wire clamping groove of the fixed upper roller (111). The effective engagement of the electric wire clamp (124) is the same as that of the wire clamping groove. The cutting assembly (13) includes a T-shaped cutting blade (131) passing through the top surface of the movable wire harness limiting block (125) and the bottom surface of the wire harness equal height limiting block (122), and a plurality of cutting blade telescopic rods (132) located on the bottom surface of the T-shaped cutting blade (131). The movable wire harness limiting block (125) has a cutting blade groove (133) inside for placing the T-shaped cutting blade (131) and the cutting blade telescopic rods (132).

2. The cutting machine for a double-ended terminal wire harness according to claim 1, characterized in that: The number of rotations of the regulating motor (114) and the moving distance of the linear motor (123) are both remotely controlled by a computer.

3. The cutting machine for a double-ended terminal wire harness according to claim 2, characterized in that: The regulating motor (114) is connected to the fixed upper roller (111) via a connecting key, and the regulating motor (114) is connected to the outer wall of the roller fixing frame (113) via a bolt structure.

4. A cutting machine for a double-ended terminal wire harness according to claim 1, characterized in that: The electric wire clamp (124) has an anti-slip pad inside.

5. A cutting machine for a double-ended terminal wire harness according to claim 1, characterized in that: The side of the wire harness height limiting block (122) is provided with a shock-absorbing pad to prevent the linear motor (123) from moving.

6. A cutting machine for a double-ended terminal wire harness according to claim 1, characterized in that: The track of the linear motor (123) is connected to the right-angle fixing plate (121) by a bolt structure.

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